•Data bus carries information between the CPU and memory or between the CPU and I/O devices. Computers spend up to two-thirds of their time simply moving data,
so the number of lines of the data bus is important for overall performance. This limitation by width of data
bus is a bottleneck even with a vast
amount of memory on the system and a
high speed CPU. 16-bit computer
means…?

•Control bus carries control signals supplied by the CPU to synchronize the movement of information on the address and data bus.